libresample ☆

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Description:
Audio resampling C library

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Multimedia

Tags: audio resampling dsp c-library multimedia

Install: brew install libresample

About:
Libresample is a C library that provides high-quality audio resampling functionality. It is a portable, open-source implementation of the algorithm described by Julius O. Smith III, designed to change the sample rate of audio signals. The library is ideal for embedding in audio applications where dynamic sample rate conversion is required.

Key Features:

High-quality band-limited interpolation
Portable C implementation with no external dependencies
Supports arbitrary input and output sample rates
Can perform both downsampling and upsampling

Use Cases:

Integrating sample rate conversion into embedded audio devices
Building custom audio processing tools or Digital Audio Workstations (DAWs)
Normalizing audio streams from different sources to a single sample rate

Alternatives:

libsamplerate – libsamplerate (Secret Rabbit Code) offers higher quality algorithms but is significantly larger and more complex.
SoX (Sound eXchange) – SoX is a full command-line audio processing suite that includes resampling, whereas Libresample is a focused library for integration.

Version History

Detected	Version	Rev	Change	Commit
Sep 16, 2025 10:44am		0	VERSION_BUMP	aa9f49fe
Sep 13, 2024 3:10pm		0	VERSION_BUMP	f01033f8